Nuclear Medicine

NuclearMedO’Connor Hospital’s Nuclear Medicine Department provides a broad spectrum of quality diagnostic and therapeutic nuclear medicine services. We use up-to-date equipment to ensure the most accurate testing and treatment possible. Our registered nuclear medicine technologists have received special training to ensure high-quality work and maximum comfort during your procedure. The nuclear medicine exams are supervised and interpreted by board-certified nuclear medicine physicians.


We provide a comprehensive array of services and examinations.

Diagnostic Exams

  • PET/CT scans
  • Sentinel lymphnode mapping
  • Bone scans
  • Thyroid scans
  • Cardiology
  • Gastroenterology
  • Bone density
  • Endocrinology
  • Kidney function

Therapeutic Procedures

  • Thyroid cancer treatments
  • Hyperthyroidism treatments
  • Zevelin treatment
  • Radioisotope bone pain palliation and treatment

Dr. Chi-Kwan Yen has been our Nuclear Medicine Medical Director since 1995. A graduate of the University of California at Berkeley, Dr. Yen  attended medical school at the University of California, San Francisco (UCSF), where he completed a residency in Nuclear Medicine. Dr. Yen has more than 30 years of experience in his field.

Contact Us

We’re open Monday through Friday, 8 a.m. to 4:30 p.m. Appointments can usually be made within a week of your call.

Phone: (408) 947-2970
Fax: (408) 283-7704